As just discussed at discord with user "alexSchmurtz". When people enter an online server and go on track they are represented as a yellow blob car for others already on track. (This is by intention to not have to load the car while being on track and add high latencies therefore). So yellow blob cars often occur while in online practice or qualifying session. The problem is, when racing at night, these yellow blob cars don't have their headlights on, so they are hardly visible. That should be changed that yellow blob cars have their headlight on at night to be visible!